When do baryonic (such a useful term) barriers arise, as one works up the scale of matter, marking the end of the radically different rules of matter behavior characterizing quantum mechanics? What seems no longer surprising is that quantum particles behave in this or that strange way ( although the particularly intriguing characteristic of spooky action at a distance suggests that even light speed itself is not a barrier to quantum activity). But what sort of matter constructs/baryonic barriers, and at what scale, impose iron limitations on the quantum world and put us in a world of solid, predictable matter, subject to the standard laws of physics we have grown used to? Why doesn't everything behave in quantum fashion, from elephants to stars? Where is the barrier? When does the behavior of matter ceased to be unpredictable and become predictable? Is it at what we term the atomic scale? Are quantum particles disciplined into our physical laws because of some quality of atomic structures?